Expert Sash Window Services

From draught proofing and resin repairs to full window replacement — everything your period property needs, delivered to the highest standard.

A Complete Service for Period Windows & Doors

Whether your sash windows need a minor repair or a complete replacement, we have the expertise, materials, and craftsmanship to handle it. Every service we offer is carried out to the same exacting standard — with full compliance for listed buildings and conservation areas as standard.

We work on all types of period windows and doors, and we'll always recommend the most appropriate solution for your property rather than the most expensive one. Our aim is to preserve what can be preserved, and replace only what needs replacing.

  • Window Replacement & Renovation
  • Draught Proofing
  • Full Repairs & Glazing
  • Resin Repairs
  • Replacement of Timber Sills
  • Internal & External Doors
Sash window services
Window replacement and renovation
01

Window Replacement & Renovation

Our core speciality. We replace double-glazed sash windows to the highest standard, using your existing box frames wherever possible to preserve the original architecture of your building. Our windows feature 33mm double-glazed sashes in a 125mm box width — a specification designed to replicate the slender profiles of original period windows while fully complying with Part L building regulations.

We match your existing window profiles precisely, replicating the glazing bar arrangement, sash proportions, and overall character of your current windows. The result is a window that looks original from the street but performs to a modern standard for thermal efficiency and draught exclusion.

Listed Buildings Conservation Areas Part L Compliant Double Glazed Hardwood
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Sash window draught proofing
02

Draught Proofing

Draughty sash windows are one of the most common complaints in period properties — and one of the most solvable. Our draught proofing service involves fitting high-quality brush pile or rubber seals into the meeting rail, staff bead, and parting bead of your existing sash windows, creating a tight seal that dramatically reduces heat loss and eliminates rattling.

This is an excellent option for windows that are structurally sound but allowing cold air and noise to penetrate. It's also the most cost-effective way to improve the thermal performance of your windows without full replacement — and it's entirely sympathetic to the original character of the window. Customers consistently report a noticeable reduction in heating bills and a much quieter home after having our draught proofing installed.

No Replacement Needed Reduces Heat Loss Stops Rattling Cost-Effective
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Full sash window repairs and glazing
03

Full Repairs & Glazing

Not every window needs replacing. Where the frame is fundamentally sound, a skilled carpenter can often carry out repairs that restore the window to full working order at a fraction of the cost of a full replacement. We carry out a comprehensive range of repairs including replacing broken sash cords, repairing or replacing staff beads and parting beads, re-glazing cracked or broken panes, and addressing sticking or seized sashes.

We also carry out more extensive repair work including replacing sections of damaged or rotten timber, repairing or rebuilding pulley mechanisms, and overhauling the entire sash balance system. Whatever the issue, we'll assess it thoroughly and give you an honest recommendation about whether repair or replacement is the right course of action.

Sash Cord Replacement Re-glazing Pulley Mechanism Repair Bead Replacement
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Resin repairs before and after
04

Resin Repairs

Timber rot is a common problem in older sash windows, particularly at the base of the lower sash and in the sill area where water can collect. Where the rot is localised and the surrounding timber is still sound, resin repair is an excellent alternative to full replacement — saving both cost and the original fabric of the window.

Using high-quality two-part epoxy resin systems, we remove all decayed timber, treat the affected area, and rebuild it to the original profile. Once cured, the repair is rock solid, accepts paint exactly like timber, and will outlast the surrounding wood. The before-and-after transformation is often remarkable — windows that looked beyond saving are restored to excellent condition. This approach is particularly valued in conservation areas where retaining original material is important to planning authorities.

Rot Treatment Epoxy Resin System Preserves Original Timber Conservation Approved
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Replacement of timber sills
05

Replacement of Timber Sills

The window sill is the most exposed part of any window — constantly subject to rain, standing water, and weathering — and often the first element to show deterioration. A failed sill not only looks unsightly but can allow water ingress that damages the surrounding structure. We carry out full timber sill replacements using hardwood or softwood to match your existing specification.

Where the sill is part of a listed building or sits within a conservation area, we ensure the replacement profile matches the original exactly — both in dimension and in character. A new sill, properly fitted and finished, transforms the appearance of a window and protects the structure beneath for decades to come. We can replace sills as a standalone job or as part of a wider window repair or renovation project.

Hardwood & Softwood Profile Matched Prevents Water Ingress Standalone or Combined
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Internal and external doors
06

Internal & External Doors

Our expertise in period joinery extends beyond windows. We supply and install bespoke internal and external doors that complement the character of your property — whether that's a traditional four-panel front door, a glazed internal door, or a purpose-made door for a listed building that needs to meet specific planning requirements.

All our doors are made to measure and finished to the same standard as our windows. For external doors, we pay particular attention to weatherproofing, security, and thermal performance without compromising the traditional aesthetics that period properties demand. As with our window work, we're fully versed in the requirements of conservation officers and can advise on the most appropriate specification for your property.

Bespoke Made to Measure Internal & External Listed Building Suitable Traditional Aesthetics
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Our Process

From first contact to finished job, we make the process as straightforward and stress-free as possible.

1

Free Survey

We visit your property, assess the windows or doors in question, and discuss the options with you. There's no charge and no obligation.

2

Clear Quotation

We provide a detailed, written quotation with no hidden costs. We explain exactly what's included so you know precisely what to expect.

3

Manufacture

Your windows are crafted to order in our UK workshops, built to match your existing profiles and specification exactly.

4

Installation

Our team installs your windows or completes your repairs to the highest standard — on time, tidy, and with the finish you'd expect.

Working in Conservation Areas & Listed Buildings

Working on a listed building or a property in a conservation area comes with specific requirements — and not every window company is equipped to meet them. We have extensive experience navigating these requirements and ensuring every project is fully compliant.

Our windows are designed from the ground up to satisfy conservation officers. The slender glazing profiles, the matching of existing window proportions, the use of appropriate hardwood — all of these are considered as a matter of course, not as an afterthought. We can also advise on the planning consent process and liaise with your local planning authority where required.

Discuss Your Project

Listed Building Consent

We understand the requirements for listed building consent and can advise on whether your project will need formal approval.

Part L Building Regs

All our replacement windows comply with Part L building regulations for thermal performance, and we provide CERTASS compliance certificates.

Conservation Area Rules

Properties in conservation areas have specific permitted development restrictions. We'll make sure your project meets local authority requirements.

CERTASS Approved

As CERTASS approved installers, every window installation is independently certified and registered — giving you peace of mind and a formal compliance record.

Not Sure Which Service You Need?

Get in touch and we'll come and take a look. We'll give you an honest assessment and a clear recommendation — with no pressure and no obligation.